Kids solve two- and three-digit addition problems by regrouping in order to help the Professor grow out his beard.

Addition experts, come on down! Practice quick-thinking two-digit addition in this educational game that tests off-the-cuff adding skills.

Children practice adding two-digit and one-digit numbers to dig up fossils in this math game.

Practice addition to 100 using multiples of 10! This game highlights two-digit addition math.

Practice two-digit addition and adding multiples of 10 in this Dino Fishing math game.

Learners hone their two-digit by one-digit addition skills in this underwater race to sunken treasure!

Which equation looks right? Review fact families and addition to 10 in this educational math game.

Kids practice two-digit addition to 100 in this action-packed number line game.

Players hone their two-digit addition skills as they match equations with their missing addends!

Math learners hone their multi-digit addition skills in this interactive game show!

Help Roly get to the party on the other side of the river by solving addition word problems!

Match each addition fact to its answer in this online game!

Give learners plenty of practice solving addition word problems with this math game!

Children use their knowledge of addition to snap pictures of unique dinosaurs in this fun math game!

Fill in these addition facts! This game challenges kids to match missing addends to each equation.

Add one and find the sum! In this game, children practice number and pattern recognition skills.

Children hone their multi-digit addition skills in this fun race to the finish line!

Children will love racing to the finish line while boosting their addition and mental math skills.

First graders gain confidence with addition and decomposing numbers in this fun water rafting game!

Which equation makes 10? Help young mathematicians figure it out in this treasure diving math game.

Compose numbers to make 20 and build first grade addition skills in each round of this online game.

Practice essential first grade addition skills in this river-themed math game!

In this water-themed race, first graders use math and logic to fill in each addition equation.

Think about how numbers are related in this interactive game about addition fact families.

Children hone their knowledge of addition and missing addends in a race to reach the sunken treasure.

Hone first grade addition strategies with this underwater math adventure!

Which number is missing? Click on the number that fits each addition expression and win the race.

Kids click on bubbles that add up to 10 to try to keep the bubbles from overflowing.

In this energizing math game, think about how different numbers can add up to 20.

Kids practice adding and taking away 10 in this silly game show.